22874437 has 2 divisors, whose sum is σ = 22874438. Its totient is φ = 22874436.

The previous prime is 22874419. The next prime is 22874441. The reversal of 22874437 is 73447822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 6625476 = 4031^2 + 2574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22874437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22874396 and 22874405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22874407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11437218 + 11437219.

It is an arithmetic number, because the mean of its divisors is an integer number (11437219).

Almost surely, 2^22874437 is an apocalyptic number.

It is an amenable number.

22874437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22874437 is an equidigital number, since it uses as much as digits as its factorization.

22874437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 37.

The square root of 22874437 is about 4782.7227601022. The cubic root of 22874437 is about 283.8682396470.

It can be divided in two parts, 2287 and 4437, that added together give a square (6724 = 82²).

The spelling of 22874437 in words is "twenty-two million, eight hundred seventy-four thousand, four hundred thirty-seven".